div#page {
			max-width: 900px;
			margin-left: auto;
			margin-right: auto;
			padding: 20px;
		}
		
		.back-to-top {
			position: fixed;
			bottom: 2em;
			right: 0px;
			text-decoration: none;
			color: #000000;
			font-size: 12px;
			padding: 1em;
			display: none;
		}

		.back-to-top:hover {	
			opacity:0.4;
		}	